James dawsok



2 Sheets-Sheet 1. E.' J. ROWE, R. HOLMES 8v J. DAWSON.

Patented Jan. 23, 1883.

CHURN,

Y//7/ l//l///////////////////////// (No Model.)

(No Model.) 2 Sheetswheet 2` E. J. ROWB, R.. HOLMES & J. DAWSON.

GHURN. No. 271,130. Patented 16.11.23.1883.

.a '/M Zw ii/2641905. 'fm/mima IO i rotary churns; and it consists incertain novel i UMTED e STATES PArnNr Ormea ENOCH J. ROWE, ROBERT HOLMES, AND JAMES DAWSON, OF EUREKA, OAL.

CHURN.

SPECIFICATION forming part of Letters Patent No. 271,130, dated January 23, 1883.

Application tiled August T, 1882. (No model.)

California, have invented certain new and useful Improvements in Ohurns, ot' which the following is a specification, reference being had therein to the accompanying drawings.

Our invention relates to improvements in combination ot' devices, which will be hereinatter fully described and pointed out in the claim. We attain these objects by the devices and combinations illustrated in the accompanying drawings, in which- Figure l is an elevation, partly in section, showing the frame, the driving-gear, the revolving dashers or agitators, the air-induction tube, and the stationary agitators. Fig. 2 is a transverse section on line w a: of Fig. l, showing the form ofthe agitators upon theinterior ot" the revolving dasher. Fig. 3 is an inside view of the. top plate of the dasher, showing the .apertures through which the airjets pass to the milk or cream above said dasher. Figwi is a plan view of the outer surface ot' the top plate ot' the dasher, showing the hoods thereon; and Fig. 5 is a sectional elevation on line y y of Fig. 4.

Similar letters refer to similar parts throughout the'se\eral views.

lt has been customary heretofore to introduce jets ofair into milk and cream while being churned; but, so far as we know, the devices and combinations for that purposepresented by us are novel.

In constructing our improved churn we provide any suitable frame, A, upon which there is mounted a vessel, B, which by preference is made cylindrical, but which may be of any l other suitable form, it being firmly secured to the frame A. Within said cylinder there is placed a revolving dasher or agitators, O, of peculiar construction, it consisting of an upper plate, O, a lower plate, C2, and a series of agitators, O3, the latter being substantially of the form shown in Fig. 2, and resting upon or firmly attached to th inner surface of plate O2, from which they rise, say, two or more inches,

the upper surface being covered with the plate C', which is attached thereto by screws or in any other manner. The last-named plate has formed in it a series of apertures, O4, as shown in Fig. 3, they being partially covered by hoods O5, as shown i-n Figs. 4 and 5, their construction being such that as the dasher is revolved in the direction indicated by the arrows shown in Fig. 2 air will enter the tube O5, attached to or formed upon the top plate oi' the dasher, its length being sufticient to allow its upper end to pass up through the cover of the vessel B, and pass out in jets through the openings O4 into the body of the milk, which is above the dasher, and thus aerate the same while it is being treated.

For the purpose ot'giving the required move ment to the dasher C, there is placed in boxes formed upon the frame A a shaft, D, to the outer end ot' which there is' supplied a crank, D', while upon its opposite end is secured a beveledgear wheel, D2, so placed as to cause it to mesh with a small wheel,D3, secured up- -on a vertical shaft, D4, the lower end of which rests in a step, D5, attached to the frame A, its upper end passing up through the bottom head ot' thevessel B, and carrying thereon therevolving dasher. In practice we prefer to so proportion the wheels D2 and D3 that by gearing the shaft D, say,one hundred or less turns per minute, the dasher willrevolve from three to four hundred times, this rate of speed having been found to be sufficient to cause the centrifugal actiop ofthe revolving dasher to so far relieve the pressure therein as to cause a steady inflow of air through the tube O6. ln order that the body of the milk or cream above the dasher may be brought into contact with surfaces which will cause the globules thereoi'rto be broken, we place on the cover E of the vessel B pendent blades F F, of which there maybe any desired number, their office being to form abutments for the milk or cream to comein contact with while it is in motion, such motion being caused by the action of the revolving dasher.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is

A revolving dasher for churns consisting lOO of the plates C and C2, formed as described, In testimony whereof we affix our signatures the air-tube O6, with open outer end above the in presence ot' two Witnesses. top of the ohurn and open inner end even with ENOOH J. ROWE. the lower faceof the plate O', the plate O', ROBERT HOLMES.

5 formed with air-passages O4, partially covered Witnesses: JAMES DAWSON.

by hoods C5, substantially as and for the pur- A. W. RANDALL, pose set forth. J. S. MURRAY, Jr. 

